Data-driven insights for local properties

📊 Environmental Assessment Report

This comprehensive report analyzes both flood risk and industrial pollution exposure for this property. The assessment combines multiple data sources including USGS elevation, FEMA flood zones, historical storm modeling, and EPA Toxic Release Inventory records.

🌊 Part 1: Flood Risk Analysis

Property Overview

This section shows the fundamental characteristics of the property, including its elevation above sea level, FEMA flood zone designation, and our calculated overall flood risk rating based on historical data and topographic analysis.

Address
4033 MALONE DR PASADENA 77507
Elevation
18.7 ft
Height above sea level from USGS data.
FEMA Flood Zone
X
Moderate to Low Risk - Outside 500-year floodplain
Overall Risk
Very Low
Risk based on FEMA zone and simulation.

Risk Assessment Outputs

These detailed metrics show the technical outputs from our flood risk model. They include predicted water depths at the property during a 5000-year flood event and estimated flood damage based on USACE methodology.

Risk Rating
Very Low
Flood Depth
0 ft ±0.5 ft
No flooding at current water level.
Water Surface Elevation (WSE)
N/A
Water surface elevation data not available.
Area Inundated
N/A
Data not available
Nearest Bayou Stage
N/A
No nearby bayou within monitoring range
Depth-Damage Estimate (HCAD Valuation)
$0
Vacant lot (no building data). No structure to calculate damage for.
Depth-Damage Estimate (Neighborhood Comparison)
$0
Vacant lot (no building data). No structure to calculate damage for.
Analysis Method
COG Bathtub Model
Raster-based flood inundation query

Flood Simulation

This simulation shows whether the property would flood based on a 5000-year flood event with 3m (9.84ft) water level. Use the interactive tool to explore different scenarios.

✅ Property Would Be Safe
Safety Margin: 8.7 feet
Severity: Safe

Adjust Flood Simulation

The analysis above uses default settings (5000-year flood, 3m/9.84ft water level). To explore different flood scenarios with interactive maps, return to the main tool:

Open Interactive Analysis Tool

Flood Risk Recommendations

Based on the property's flood risk profile, here are specific action items to consider.

  • FEMA Zone X (minimal hazard) - flood insurance available at preferred rates.
  • Review the interactive flood simulator to understand how different rainfall events could affect this property.
  • Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking
High
Higher pollution than 89% of Houston homes
This ranking compares pollution levels within 2 miles of this property against 10,000 randomly sampled Houston metro properties. Lower percentiles indicate higher pollution exposure.
Industrial Pollution Nearby (Last 10 Years)
6.51 million lbs
Extremely High
997.9x more than typical Houston property
≈ 326 dump trucks of chemicals within 2 miles
Total chemical releases from all industrial facilities within a 2-mile radius over the past decade (2014–2024). Data from EPA's Toxic Release Inventory tracking air, water, and land discharges.
💨 Air Pollution (Last 10 Years)
6.49 million lbs
Extremely High
1346.7x more than typical Houston property
Chemicals released into the air from nearby facilities over 10 years. Includes both fugitive emissions (leaks, evaporation) and stack emissions (smokestacks, vents). May affect local air quality.
💧 Water Pollution (Last 10 Years)
16 thousand lbs
Extremely High
Most Houston properties have none nearby
Chemical discharges to surface water (bayous, streams, drainage) from industrial facilities within 2 miles over the past decade. May impact local waterways and drainage systems.

❤️ Why It Matters

High chemical activity nearby can indicate industrial zones, truck traffic, or potential odor and noise issues. These factors may affect air quality, long-term property desirability, and neighborhood character. This data helps you understand the industrial footprint around your property.

🏙️ Houston Metro Benchmarks

Comparison with typical Houston properties (based on 10,000 randomly sampled homes). All measurements are for chemicals released within a 2-mile radius.

PeriodTotalAirWater
Typical Houston Property (2014-2024)6,524 lbs4,822 lbs0 lbs
This Property (2014-2024)6,510,627 lbs6,494,290 lbs16,336 lbs
Typical Houston Property (2024 Only)2 lbs1 lbs0 lbs
This Property (2024 Only)3,534,887 lbs502,292 lbs1,275 lbs

📊 How This Property Compares to Houston Metro

Based on a random sample of 10,000 Houston properties, this chart shows the distribution of pollution levels across the metro area. The highlighted bar indicates where this property falls compared to other homes. Lower percentiles mean higher pollution exposure.

0-9thMost Polluted
9.9%
10-19th
10.1%
20-29th
9.9%
30-39th
10.1%
40-49th
9.7%
50-59th
10.2%
60-69th
6%
70-79th
5.8%
80-89th
4.3%
90-100thLowest Pollution
34.2%
Higher pollution than 89% of Houston homes
Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile (top 15% most polluted).

Top chemicals released near this property (past 10 years):

Ethylene, n-Hexane, Methanol, Ammonia, Vinyl acetate

View the full list of 70 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (70 chemicals)

#ChemicalCAS#Air (lbs, 10yr)Water (lbs, 10yr)Total (lbs, 10yr)
1Ethylene74-85-11,123,072 lbs0 lbs1,123,072 lbs
2n-Hexane110-54-31,075,913 lbs0 lbs1,075,913 lbs
3Methanol67-56-1838,322 lbs0 lbs844,849 lbs
4Ammonia7664-41-7756,594 lbs123 lbs756,737 lbs
5Vinyl acetate108-05-4538,659 lbs0 lbs538,659 lbs
6Toluene108-88-3434,759 lbs0 lbs434,759 lbs
7Nitric acid7697-37-2397,668 lbs55 lbs397,748 lbs
8Ethylene oxide75-21-8155,592 lbs0 lbs155,592 lbs
9Ethylene glycol107-21-1136,914 lbs0 lbs136,914 lbs
10Acetaldehyde75-07-0119,011 lbs0 lbs119,011 lbs
11Acrylic acid79-10-7103,139 lbs0 lbs103,139 lbs
12Propylene115-07-197,894 lbs0 lbs97,894 lbs
13n-Butyl alcohol71-36-391,561 lbs0 lbs91,561 lbs
14Acrylonitrile107-13-183,639 lbs0 lbs83,639 lbs
15Certain glycol ethersN23049,151 lbs0 lbs49,152 lbs
16Hydroquinone123-31-944,758 lbs0 lbs44,758 lbs
17Molybdenum trioxide1313-27-537,655 lbs3,227 lbs40,897 lbs
18Butyl acrylate141-32-239,999 lbs0 lbs39,999 lbs
19Chlorodifluoromethane (HCFC-22)75-45-638,792 lbs0 lbs38,792 lbs
20Ethyl acrylate140-88-537,048 lbs0 lbs37,048 lbs
21Methyl isobutyl ketone108-10-136,313 lbs0 lbs36,313 lbs
22Hydrogen sulfide7783-06-431,678 lbs0 lbs31,678 lbs
23Cumene98-82-831,173 lbs0 lbs31,173 lbs
24Phenol108-95-230,497 lbs0 lbs30,497 lbs
25Methyl acrylate96-33-323,024 lbs0 lbs23,024 lbs
26Xylene (mixed isomers)1330-20-717,096 lbs0 lbs17,096 lbs
27Nickel compoundsN49511,795 lbs1,905 lbs13,715 lbs
28Styrene100-42-512,385 lbs0 lbs12,385 lbs
292-Methoxyethanol109-86-411,669 lbs0 lbs11,669 lbs
30Benzene71-43-210,536 lbs0 lbs10,536 lbs
31Nitrate compounds (water dissociable; reportable only when in aqueous solution)N51130 lbs9,885 lbs9,930 lbs
32Chloroethane75-00-39,070 lbs0 lbs9,070 lbs
33Cobalt compoundsN0965,871 lbs886 lbs6,772 lbs
342-Ethoxyethanol110-80-56,044 lbs0 lbs6,044 lbs
35Diphenylamine122-39-45,938 lbs0 lbs5,938 lbs
36tert-Butyl alcohol75-65-05,606 lbs0 lbs5,606 lbs
37Ethylbenzene100-41-45,307 lbs0 lbs5,307 lbs
38Methyl iodide74-88-45,089 lbs0 lbs5,089 lbs
39Nickel And Nickel CompoundsN4954,878 lbs62 lbs4,940 lbs
40Formaldehyde50-00-04,627 lbs102 lbs4,729 lbs
41Cobalt And Cobalt CompoundsN0964,551 lbs42 lbs4,593 lbs
42Dimethylamine124-40-33,754 lbs0 lbs3,754 lbs
43Methyl methacrylate80-62-63,052 lbs0 lbs3,052 lbs
44Propylene oxide75-56-92,352 lbs0 lbs2,352 lbs
45Acrolein107-02-82,268 lbs0 lbs2,268 lbs
46Maleic anhydride108-31-61,577 lbs0 lbs1,577 lbs
47Allyl alcohol107-18-61,569 lbs0 lbs1,569 lbs
481,2,4-Trimethylbenzene95-63-61,065 lbs0 lbs1,065 lbs
49NonylphenolN5301,013 lbs0 lbs1,013 lbs
50Nonylphenol EthoxylatesN5351,008 lbs0 lbs1,008 lbs
51Cyclohexane110-82-7857 lbs0 lbs857 lbs
52Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)7664-93-9597 lbs0 lbs597 lbs
53Benzoyl chloride98-88-4469 lbs0 lbs469 lbs
54Hydrazine302-01-2437 lbs0 lbs437 lbs
55Lead And Lead CompoundsN420211 lbs10 lbs221 lbs
56Barium compounds (except for barium sulfate (CAS No. 7727-43-7))N040145 lbs30 lbs175 lbs
57Bifenthrin82657-04-3149 lbs0 lbs149 lbs
58Lead compoundsN420138 lbs4 lbs142 lbs
59Copper compoundsN100132 lbs6 lbs138 lbs
60Naphthalene91-20-396 lbs0 lbs96 lbs
61Cyanide compoundsN1065 lbs0 lbs58 lbs
62Chloromethane74-87-351 lbs0 lbs51 lbs
63Oxyfluorfen42874-03-310 lbs0 lbs10 lbs
64Zinc compoundsN9825 lbs0 lbs5 lbs
65Bis(2-chloroethyl) ether111-44-43 lbs0 lbs3 lbs
66Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
67Cumene hydroperoxide80-15-92 lbs0 lbs2 lbs
68Nickel7440-02-02 lbs0 lbs2 lbs
69Formic acid64-18-61 lbs0 lbs1 lbs
70Boron trifluoride7637-07-21 lbs0 lbs1 lbs

Top chemicals released near this property (2024 only):

Methanol, Ethylene glycol, Ethyl acrylate, Acrylic acid, Vinyl acetate

View the full list of 59 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (59 chemicals)

#ChemicalCAS#Air (lbs/yr)Water (lbs/yr)Total (lbs/yr)
1Methanol67-56-141,695 lbs0 lbs1,013,437 lbs
2Ethylene glycol107-21-18,941 lbs0 lbs439,833 lbs
3Ethyl acrylate140-88-53,477 lbs0 lbs391,250 lbs
4Acrylic acid79-10-711,887 lbs0 lbs339,440 lbs
5Vinyl acetate108-05-421,425 lbs0 lbs133,219 lbs
6n-Hexane110-54-3117,703 lbs0 lbs118,227 lbs
7Ethylene74-85-1112,842 lbs0 lbs112,842 lbs
8tert-Butyl alcohol75-65-0467 lbs0 lbs93,900 lbs
9Nonylphenol EthoxylatesN535131 lbs0 lbs93,342 lbs
10Dimethylamine124-40-3341 lbs0 lbs92,098 lbs
11Ammonia7664-41-787,209 lbs5 lbs89,034 lbs
12n-Butyl alcohol71-36-32,825 lbs0 lbs80,378 lbs
13Molybdenum trioxide1313-27-52,770 lbs482 lbs79,984 lbs
14Acetaldehyde75-07-04,403 lbs0 lbs78,746 lbs
15Diphenylamine122-39-4105 lbs0 lbs48,731 lbs
161,2,4-Trimethylbenzene95-63-699 lbs0 lbs44,035 lbs
17Butyl acrylate141-32-22,678 lbs0 lbs43,665 lbs
18Toluene108-88-314,342 lbs0 lbs42,732 lbs
19Copper7440-50-80 lbs0 lbs27,230 lbs
20Ethylene oxide75-21-89,498 lbs0 lbs20,321 lbs
21Methyl acrylate96-33-32,867 lbs0 lbs17,363 lbs
22Xylene (mixed isomers)1330-20-7635 lbs0 lbs13,936 lbs
23Certain glycol ethersN2303,532 lbs0 lbs13,299 lbs
24Nickel And Nickel CompoundsN49582 lbs8 lbs12,690 lbs
25Propylene115-07-112,098 lbs0 lbs12,098 lbs
26Chloroethane75-00-33,424 lbs0 lbs9,649 lbs
27Nitric acid7697-37-29,490 lbs5 lbs9,500 lbs
28Nickel compoundsN4951,017 lbs108 lbs7,851 lbs
29Hydroquinone123-31-96,585 lbs0 lbs6,585 lbs
30Phenol108-95-21,875 lbs0 lbs6,506 lbs
31Cumene98-82-82,616 lbs0 lbs5,324 lbs
32Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)N0900 lbs0 lbs5,055 lbs
33Naphthalene91-20-312 lbs0 lbs4,436 lbs
34Methyl isobutyl ketone108-10-13,997 lbs0 lbs3,997 lbs
35Hydrogen sulfide7783-06-43,596 lbs0 lbs3,596 lbs
36Ethylbenzene100-41-4275 lbs0 lbs2,926 lbs
37Cobalt compoundsN096455 lbs36 lbs2,816 lbs
38Styrene100-42-5374 lbs0 lbs2,108 lbs
39Acrolein107-02-81,224 lbs0 lbs1,784 lbs
40Cumene hydroperoxide80-15-90 lbs0 lbs1,560 lbs
41Formaldehyde50-00-0951 lbs0 lbs1,464 lbs
42Nitrate compounds (water dissociable; reportable only when in aqueous solution)N5110 lbs622 lbs1,122 lbs
43Benzene71-43-21,090 lbs0 lbs1,090 lbs
442-Methoxyethanol109-86-41,027 lbs0 lbs1,045 lbs
45Methyl iodide74-88-4958 lbs0 lbs958 lbs
46Cobalt And Cobalt CompoundsN09682 lbs8 lbs917 lbs
47Maleic anhydride108-31-6186 lbs0 lbs592 lbs
482-Ethoxyethanol110-80-5407 lbs0 lbs429 lbs
49Dimethyl phthalate131-11-30 lbs0 lbs406 lbs
50Methyl methacrylate80-62-6387 lbs0 lbs391 lbs
51Cyclohexane110-82-724 lbs0 lbs315 lbs
52Propylene oxide75-56-999 lbs0 lbs263 lbs
53NonylphenolN5301 lbs0 lbs224 lbs
54Lead And Lead CompoundsN42016 lbs1 lbs68 lbs
55Hydrazine302-01-239 lbs0 lbs39 lbs
56Benzoyl chloride98-88-433 lbs0 lbs33 lbs
57Acrylonitrile107-13-10 lbs0 lbs4 lbs
58Manganese And Manganese CompoundsN4503 lbs0 lbs3 lbs
59Aniline62-53-30 lbs0 lbs2 lbs

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